Which term refers to the specialized male gametophyte of seed plants, such as gymnosperms?

a. pollen grain
b. strobilus
c. sporopollenin
d. ovule


Ans: a. pollen grain

Biology & Microbiology

You might also like to view...

Patterns of species change and succession are one focus of

A. behavioral ecology. B. environmental science. C. biological control. D. community ecology. E. physiological ecology.

Biology & Microbiology

The efficient exchange of gases in gills is an example of countercurrent exchange

____________________ Indicate whether the statement is true or false.

Biology & Microbiology

What are the ecological consequences of acidification of rain and oceans?

A) They damage the health of ecosystems. B) They do not have any consequences on ecosystems. C) They improve the health of ecosystems. D) Acid rain damages ecosystems, but ocean acidification improves the health of oceans.

Biology & Microbiology

The seminal vesicles, prostate and bulbourethral glands, 

A. produce semen. B. cause ejaculation. C. are secondary sex characteristics. D. produce hormones.

Biology & Microbiology